package io;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class FosDemo {
    public static void main(String[] args) throws IOException {
       FileOutputStream fos=new FileOutputStream("./fos.dat");
       // File file=new File("./fos.dat");
       // FileOutputStream fos=new FileOutputStream(file);

        fos.write(1);
        fos.write(2);
        System.out.println("输出完毕");
        fos.close();//流用完之后
    }
}
